[all-commits] [llvm/llvm-project] 513ac1: [Clang][RISCV] Add P extension reinterpret cast in...

[SiHuaN via All-commits]

  Branch: refs/heads/main
  Home:   https://github.com/llvm/llvm-project
  Commit: 513ac13e7e5037af4b39c8c582dd7927f4c807fc
      https://github.com/llvm/llvm-project/commit/513ac13e7e5037af4b39c8c582dd7927f4c807fc
  Author: SiHuaN <liyongtai at iscas.ac.cn>
  Date:   2026-07-17 (Fri, 17 Jul 2026)

  Changed paths:
    M clang/lib/Headers/riscv_packed_simd.h
    M clang/test/CodeGen/RISCV/rvp-intrinsics.c

  Log Message:
  -----------
  [Clang][RISCV] Add P extension reinterpret cast intrinsics (#210241)

Implement the "Reinterpret casts" section of the RISC-V P extension intrinsic
spec in `riscv_packed_simd.h`.

The 82 `__riscv_preinterpret_<from>_<to>` intrinsics provide
bit-pattern-preserving conversions between packed types and equal-width
scalars, and between equal-width packed types. They generate no instructions;
each is a `__builtin_bit_cast`.



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